CVE-2025-29816 Microsoft Word Security Feature Bypass Vulnerability
An attacker can bypass security features in Microsoft Word via improper input validation, requiring users to apply vendor patches.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-29816?
CVE-2025-29816 is a high-severity vulnerability in Microsoft 365 Apps, published on 8 Apr 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Improper input validation in Microsoft Office Word allows an unauthorized attacker to bypass a security feature over a network.
Weakness: CWE-349
Which versions are affected by CVE-2025-29816?
It affects 4 products.
Products include Microsoft 365 Apps, Microsoft Office, Microsoft Office Long Term Servicing Channel, Microsoft Word.
How do I fix CVE-2025-29816?
No fix has been published for CVE-2025-29816 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-29816 being exploited?
There is no known exploitation of CVE-2025-29816 in the wild and no public exploit code.
Other vulnerabilities in Microsoft 365 Apps
- CVE-2024-21413 Microsoft Outlook Improper Input Validation
- CVE-2023-23397 Microsoft Office Outlook Privilege Escalation
- CVE-2024-38189 Microsoft Project Remote Code Execution Vulnerability
- CVE-2023-35311 Microsoft Outlook Security Feature Bypass
- CVE-2026-21514 Microsoft Office Word Reliance on Untrusted Inputs in a Security Decision
Sources
Also known as GHSA-xcw6-8574-9qv2.